Window lock



W. E. HUBER.

WINDOW LOCK.

APPLICATION FILED FEB. 9, 1920.

Patented Aug. 15, 1922.

WILLIAM E. HUBER, OF CHICAGO, ILLINOIS.

winnow LOCK.

T 0 all whom it may concern:

Be it known that I, ll/ILLIAM "E. I'IUBER, a citizen or the United States, and a resident of the city of Chicago, county of Cook, and State of Illinois, have invented certain new and useful Improvements in \Vindow Locks, of which the following is a specification.

My invention relates to new and useful improvements in window locks, and has for its object the provision of a window lock which will be simple in structure, economical in manufacture, and highly efficient in use.

Another object is the provision 'of a window lock operable solely from the in terior of the room in which used.

Another object is the provision of means for locking the co-operating sashes of a window in closed position or in partially open position.

Other objects will appear hereinafter.

The invention consists in the combinations and arrangements of parts hereinafter described and claimed.

The invention will be best understood by reference to the accompan drawings forming a part of this specification, and in which,

Fig. is a top plan view of tie invention,

Fig. 2, is a bottom plan view of the invention, and

Fig 3, is a perspective view of the inven tion applied to a window sash.

The preferred form of construction comprises a casing (3 provided at one side with a horizontally extending lug '1'. The luv 7 and one of the sides is provided with openings for the reception of suitable fastening means 8 whereby the device may be secured to the rail or stile of a window sash. Rigidly attached to the interior surface of the easing 6 is a threaded stem 9 upon which is pivotally mounted a plunger actuating plate 10 from one side of which projects an 111- tegral finger 11 which is oif-set vertically and then horizontally through an arcuate slot 12 formed in the upper face of the casing 6 so as to provide accessible means for operating the locking mechanism of the device. The plate 10 is provided with slots 13 and 16 adapted to receive respectively studs 13 and 16, which project from the turned ends of the plungers 17 and 18 respectively. The plungers 17 and 18 are mounted for slidable movement in the Specification of Letters Eatent. Putgntgd dug; 15 1922, Application filed February 9, 1920. Serial No. 357,287. I

in Fig. 3 and a wear plate 22 is secured to H the stile 21 of the upper sash and a wear plate 2i is secured to the window frame in the runway of the stile or" the lower window. As shown, the wear plate 22 is provided with openings 23 which are spaced apart and the wear plate 24 is likewise provided with openings 25. hen the device is in operative position upon the window sash, the ends of the knuckles 19 and 20 are adapted to clear the wear plates 22 and 24:. These wear plates may be sunk within the stile or frame and inwardly projecting openings provided at each. opening in the wear plate. As shown in Fig. 2, the plungers are in their position of outward movement and upon moving the finger 11 in the arcuate slot, the plate 10 swings upon the stem 9 as a pivot. It will be evident that in this operation the plungers l? and 18 will be retracted through the oper ation of the plate 10 upon the studs 13' and 1-6. hitoving the finger in the opposite direction will force the plungers outwardly. When positioned. upon a window, the plungers are forced outwardly into the openings provided therefor in order to lock the window in fixed position. It will be noted that a double locking oi? the lower window takes place upon thrusting the plungers into the openings provided therefor. It is also evident that either of the windows or both of them may be opened a. short distance and both securely locked in the opened position;

With a window locking; device such as described, a pmmying of the window becomes practically impossible, due to the double locking and due to the fact that the looking plungers are not exposed suiiiciently to ing from the spirit of the invention. 1, therefore, do not wish to be limited to the precise details of the construction set forth but desire to avail myself of such variations and modifications as come within the scope of the appended claims.

Having;- described my invention, what I claim as new and desire to secure by Letters Patent is 3- 1. A device for locking co-operating window sashes in fixed relation, comprising a casing; plunger-s slidably mounted in knuckles formed on said casing; said plungers being adapted to project into openings formed in one of said sashes and in the window frame a plate pivotally mounted on said casing, said plate being; provided with slots; studs on the inturned ends of said plungers to engage in said slots; and an operating member integral with and extending vertically from one end of said plate, through a slot in the top of said casing, thence laterally over said casing, substantially as described.

2. A device for locking co-operating wease window sashes in fixed relation, comprising a casing having an extended side provided with openings for fastening said side to the sides of the sash; a fastening lug extending laterally on another side of said casing; plungers slidably mounted in knuckles formed on said casing, said plungers beingadapted to project into openings formed in one of said sashes and in the window frame; a plate pivotally mounted on said casing, said plate being provided with slots; studs on said plungers to engage in said slots; and an operating member integral with and extending vertically from said plate, through a slot in the top of said casing, thence parallel with the top of said casing, substantially described.

In testimony whereof I have signed my name to this specification in the presence of two subscribing witnesses.

WILLIAM HUBER.

Vitnesses JOSHUA R. H. Porrs, Rose K. Tens. 

